Weather in Interlaken in September
The weather in Interlaken in September is relatively comfortable for a trip in terms of degrees (10-19), but it might be rainy (around 14 rainfall days) so it is important to prepare yourself with an umbrella and raincoat.
Avg Temp
10° - 19°
Avg Rainy Days
14
Avg Dry Days
16
Avg Snow Days
0
Weather Facts - Interlaken in September
* The warmest temperature recorded in in September is 27°C
* The coldest temperature recorded in Interlaken in September is 2°C
* The average rainfall in Interlaken in September is 99 mm